An angle vehicle-mounted weighing device

Abstract

The utility model discloses an angle vehicle -mounted weighing device, including the height and angle synchronous proportional change mechanism for installing in the axle and the heavy beam inside side, height and angle synchronous proportional change mechanism include angle vehicle -mounted weighing hinge support mechanism and adjust fixed support subassembly, angle sensor be provided on angle vehicle -mounted weighing hinge support mechanism to angle vehicle -mounted weighing hinge support mechanism be provided with compression stroke and with compression stroke linear synchronous change's hinge support mechanism angle. This angle vehicle -mounted weighing device, vehicle load -bearing, the linear deformation of steel plate spring compression generation, corresponding compression stroke produces linear deformation, and hinge support mechanism angle synchronous produces linear change, and the weighing error is small, and the accuracy of weighing is effectively improved, and simple structure, convenient installation.

Description

Technical Field

[0001] This utility model relates to the field of weighing device technology, and in particular to an angle-mounted vehicle weighing device. Background Technology

[0002] Currently, there is a lack of widespread and effective supervision over freight vehicles during transportation in China, and overloading and exceeding size limits due to drivers carrying unauthorized cargo still exist. This not only hinders the development of logistics companies and causes heavy losses to their profits, but also damages transportation infrastructure due to safety hazards and may even have adverse social impacts. In order to reduce the safety hazards caused by vehicle overloading, it is essential to effectively prevent and control the occurrence of overloaded and oversized vehicles.

[0003] Traditional static or dynamic weighing systems cannot monitor and manage vehicles in real time because the weighing equipment is separate from the vehicle.

[0004] The vehicle-mounted intelligent weighing system is a comprehensive information system for managing overloaded vehicles, integrating technologies such as the Internet of Things, the Internet, intelligent sensing, and computers. It enables self-governance by logistics vehicle companies, provides a technological foundation for promoting regional economic and social development, and offers technical support for intelligent management of vehicle overloading and for fair enforcement by various traffic law enforcement departments in handling overloaded and oversized heavy freight vehicles and the weighing of large-item transport. For example, Chinese patent document CN206019819U discloses a vehicle-mounted weighing device, a suspension device using the same, and a vehicle using the same. The vehicle-mounted weighing device includes a spring steel plate for mounting bearings supporting the axles and can be installed on the vehicle frame; an angle sensor is installed at the end of the spring steel plate.

[0005] This technical solution involves setting an angle sensor on a spring steel plate. The angle sensor detects changes in the angle of the spring steel plate and then obtains the load change of the spring steel plate by measuring its deformation, thus obtaining the vehicle's load information. However, this solution detects changes in the angle of the spring steel plate by using an angle sensor, but there is a phenomenon where the deformation of the spring steel plate is not proportional to the angle sensor reading, resulting in problems such as low detection accuracy and large weighing errors. Utility Model Content

[0006] The purpose of this invention is to solve the problems of low detection accuracy and large weighing error in existing vehicle-mounted weighing devices, and to provide an angle-based vehicle-mounted weighing device that achieves effective improvement in detection accuracy by using the linear deformation generated by the compression of a spring steel plate and the linear change of the angle synchronously.

[0007] The technical solution adopted by this utility model to achieve its invention objective is: an angle-based vehicle-mounted weighing device, including a height and angle synchronous proportional conversion mechanism for installation on the inner side of the axle and load-bearing beam. The height and angle synchronous proportional conversion mechanism includes an angle-based vehicle-mounted weighing hinge support mechanism and an adjustable fixed support assembly. An angle sensor is installed on the angle-based vehicle-mounted weighing hinge support mechanism, and the hinge support mechanism has a compression stroke and a hinge angle that changes linearly and synchronously with the compression stroke. This angle-based vehicle-mounted weighing device, through a height and angle synchronous proportional conversion mechanism, ensures that when the vehicle weight changes, the compression stroke changes simultaneously, and the hinge angle changes linearly and synchronously. The angle sensor detects the hinge angle change value in real time and converts it into a digital signal, which is transmitted to the vehicle-mounted positioning terminal. The vehicle-mounted positioning terminal then uploads the information to the vehicle-mounted weighing platform, thereby achieving real-time monitoring of the vehicle weight. This angle-mounted vehicle weighing device is installed inside the axle and the load-bearing beam. Since the axle is connected to the frame beam through a leaf spring suspension mechanism, when the frame beam is under load, the leaf springs compress and produce linear deformation (spring compression value H). The compression stroke of the angle-mounted vehicle weighing device connected between the load-bearing beam and the axle decreases, and the angle of the hinge mechanism changes linearly in sync. This converts the change in vehicle weight into a change in compression stroke, thereby achieving a synchronous linear change in angle. The weighing error is small, effectively improving the accuracy of weighing. Moreover, the structure is simple and easy to install.

[0008] Preferably, the angle-mounted vehicle weighing hinge mechanism includes a lower hinge support and an upper hinge support hinged together by an angle connecting pin. The angle sensor is mounted on either the lower or upper hinge support. The angle-mounted vehicle weighing hinge mechanism mainly comprises a lower hinge support and an upper hinge support, which are hinged together to achieve synchronous linear change of the hinge mechanism angle as the compression stroke decreases, resulting in good weighing accuracy. The angle sensor can be selectively mounted on either the lower or upper hinge support as needed.

[0009] Preferably, the upper end of the upper hinge support is hinged to the adjusting fixed support assembly, and the lower hinge support is hinged to a fixed support. The upper hinge support is hinged to the adjusting fixed support assembly, and the lower hinge support is hinged to a fixed support, thereby forming a hinge mechanism. With the help of an angle sensor, a height and angle synchronous proportional conversion mechanism can be formed.

[0010] Preferably, the upper hinge support is hinged to the adjusting and fixing support assembly via an upper connecting pin, and the lower hinge support is hinged to the fixing support via a lower connecting pin.

[0011] Preferably, the height between the hinge axis of the upper hinge support and the hinge axis of the adjustable fixed support assembly and the hinge axis of the lower hinge support and the fixed support is set as the compression stroke. The angle between the upper hinge support equipped with an angle sensor or the lower hinge support equipped with an angle sensor and the horizontal plane is set as the hinge mechanism angle. The adjustable fixed support assembly is adjustablely connected to the inner side of the load-bearing beam, thereby directly compressing the leaf spring to produce linear deformation (spring compression value H), which is reflected in the linear deformation of the compression stroke, thus realizing the synchronous linear change of the hinge mechanism angle.

[0012] Preferably, an angle sensor mounting base is provided on the upper or lower hinge support, and the angle sensor is installed inside the angle sensor mounting base.

[0013] Preferably, the lower hinge support and the upper hinge support are set to be of equal or unequal length.

[0014] Preferably, the adjustable fixed support assembly includes a fixed support hinge seat and an adjusting screw assembly that is threadedly connected to the fixed support hinge seat.

[0015] Preferably, the adjusting screw assembly includes an adjusting screw body and an adjusting locking nut disposed on the adjusting screw body.

[0016] Preferably, the adjusting screw body is provided with a connecting fixing plate.

[0017] The beneficial effects of this utility model are as follows: This angle-based vehicle weighing device, through a height and angle synchronous proportional conversion mechanism installed inside the axle and load-bearing beam, can effectively improve the accuracy of vehicle weighing. The axle is connected to the frame beam through a leaf spring suspension mechanism. When the frame beam bears load, the leaf springs compress and produce linear deformation (spring compression value H). The angle (α angle) of the hinge mechanism of the angle-based vehicle weighing device connected between the load-bearing beam and the axle of the truck changes linearly in sync. The internal angle sensor detects the change value of (α angle) in real time and converts it into a digital signal, which is transmitted to the vehicle positioning terminal. The vehicle positioning terminal uploads the information to the vehicle weighing platform, thereby realizing real-time weight measurement and monitoring of the vehicle's load. This effectively improves the accuracy of weighing, and the structure is simple and easy to install. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of an angle-mounted vehicle weighing device according to this utility model.

[0019] Figure 2 A schematic diagram of the structure of the vehicle-mounted weighing device of this utility model from another angle.

[0020] Figure 3This is a schematic diagram of an application structure of the angle-mounted vehicle weighing device of this utility model.

[0021] Figure 4 yes Figure 3 The left view in the image.

[0022] Figure 5 This is a schematic diagram of the angle-mounted vehicle weighing device in Embodiment 2 of this utility model.

[0023] Figure 6 This is a structural schematic diagram of an angle-mounted vehicle weighing device in Embodiment 3 of this utility model.

[0024] Figure 7 yes Figure 6 The left view.

[0025] In the figure: 1. Fixed support, 101. Support base plate, 102. U-shaped support, 103. Support shaft hole; 2. Connecting fixed plate; 3. Height and angle synchronous proportional conversion mechanism; 4. Angle vehicle-mounted weighing hinge mechanism. 5. Adjusting the fixed support assembly, 51. Fixed support hinge seat, 52. Adjusting screw assembly, 521. Adjusting screw body, 522. Adjusting lock nut, 5221. Upper adjusting lock nut, 5222. Lower adjusting lock nut; 6. Upper connecting pin; 7. Angular connecting pin; 8. Lower hinge support; 81. Lower hinge support connecting rod; 82. Lower hinge support groove; 83. Lower hinge support shaft hole; 84. Lower hinge support hinged upper end; 85. Lower hinge support hinged lower end; 86. Lower hinge support angle sensor mounting base. 9. Upper hinge support; 91. Upper hinge support hinged at the upper end; 92. Upper hinge support hinged at the lower end; 93. Upper hinge support angle sensor mounting base; 94. Upper hinge support connecting rod; 95. Upper hinge support groove; 96. Upper hinge support shaft hole. 10. Angle sensor; 11. Lower connecting pin. Detailed Implementation

[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Components not specifically described in this utility model are existing components or general components, and control systems, control methods, related algorithms, parameters, etc. not specifically described all adopt existing technologies.

[0027] Example 1: See Figure 1 , Figure 2An angle-based vehicle-mounted weighing device includes a height and angle synchronous proportional conversion mechanism 3 for installation on the inner side of the axle and load-bearing beam. The height and angle synchronous proportional conversion mechanism 3 includes an angle-based vehicle-mounted weighing hinge support mechanism 4 and an adjusting fixed support assembly 5. An angle sensor 10 is provided on the angle-based vehicle-mounted weighing hinge support mechanism 4, and the angle-based vehicle-mounted weighing hinge support mechanism 3 is provided with a compression stroke and a hinge support mechanism angle that changes linearly and synchronously with the compression stroke.

[0028] Specifically, it also includes a fixed support 1 for connecting with the vehicle and a connecting plate 2 for fixedly connecting with the inner side of the load-bearing beam. The height and angle synchronous proportional conversion mechanism 3 is disposed between the fixed support 1 and the connecting plate 2 and is hinged to the fixed support 1 and the connecting plate 2.

[0029] The height and angle synchronous proportional conversion mechanism 3 includes an angle vehicle weighing hinge support mechanism 4 connected to a fixed support 1 and an adjustable fixed support assembly 5 that is adjustablely connected to a connecting fixed plate 2. The lower end of the adjustable fixed support assembly 5 is hinged to the angle vehicle weighing hinge support mechanism 4 via an upper connecting shaft pin 6.

[0030] The adjustable fixed support assembly 5 includes a fixed support hinge seat 51 and an adjusting screw assembly 52 threadedly connected to the fixed support hinge seat 51. By adjusting the adjusting screw assembly 52, the adjustable fixed support assembly 5 can be adjusted axially, thereby realizing the adjustment of the hinge angle α of the angle vehicle weighing hinge support mechanism 4.

[0031] The aforementioned angle-mounted weighing hinge mechanism 4 includes a lower hinge support 8 and an upper hinge support 9 hinged together by an angle connecting pin 7, as well as an angle sensor 10. In this embodiment, the angle sensor 10 can be disposed on the upper hinge support 9 or mounted on the lower hinge support 8. In this embodiment, the angle sensor 10 is mounted on the upper hinge support 9; specifically, the angle sensor 10 can be mounted inside or outside the upper hinge support 9. One or more angle sensors 10 can be provided as needed; there is no specific limitation, and the number can be set according to actual requirements. Typically, one angle sensor is sufficient.

[0032] The lower hinge support 8 is hinged to the fixed support 1 via a lower connecting pin 11. The upper hinge support 9 is hinged to the fixed support hinge seat 51 via an upper connecting pin 6.

[0033] The height between the hinge axis of the upper hinge support 9 and the hinge axis of the adjusting fixed support assembly 5 and the hinge axis of the lower hinge support 8 and the fixed support 1 is set as the compression stroke, which is the spring compression value H. The angle α between the upper hinge support equipped with an angle sensor 10 or the lower hinge support equipped with an angle sensor and the horizontal plane is set as the hinge mechanism angle.

[0034] An angle sensor mounting base is provided on the upper hinge support 9 or the lower hinge support 8. In this embodiment, the angle sensor mounting base is provided on the upper hinge support 9, specifically as an upper hinge support angle sensor mounting base 93 provided on the upper hinge support 9. The angle sensor is installed inside the angle sensor mounting base 93 and its signal line is output outside the angle sensor mounting base.

[0035] In this embodiment, the upper hinge support 9 and the lower hinge support 8 are of equal length. Therefore, the line connecting the upper hinge support 9, the lower hinge support 8, the upper connecting pin center, and the lower connecting pin center forms an isosceles triangle structure, and the line connecting the upper connecting pin center and the lower connecting pin center is coaxial with the axis of the adjusting screw body. The height distance between the upper connecting pin center and the lower connecting pin center is set as the compression stroke, which is the range of linear deformation (spring compression value H) produced by the compression of the vehicle leaf spring.

[0036] The angle α of the hinge mechanism is generally set between 15 degrees and 75 degrees, while the included angle between the upper hinge support and the lower hinge support is twice the angle α of the hinge mechanism.

[0037] When the vehicle is unloaded, the hinge mechanism is at its maximum design angle, for example, 75 degrees. At this time, the spring compression value H is 0 compression.

[0038] When the vehicle is loaded, the spring compression value H changes, and the compression is small. At this time, the hinge support mechanism angle α of the on-board weighing device connected between the load-bearing beam and the axle of the truck changes linearly. This realizes the design of synchronous proportional change of height and angle, which can accurately detect changes in the load.

[0039] like Figure 3 , Figure 4 As shown in the figure, this embodiment will be described using the example of installing the vehicle-mounted weighing device at this angle on a truck.

[0040] In use, the truck's axle 20 is connected to the frame's load-bearing beam 40 via a leaf spring suspension mechanism 30. Multiple angle-mounted weighing devices are installed according to the number of leaf springs. During installation, the fixed support 1 is fixedly connected to the axle 20, and the connecting fixing plate 2 is fixedly connected to the inner side of the frame's load-bearing beam 40. The axis of the angle connecting pin 7 between the upper hinge support 9 and the lower hinge support 8 is perpendicular to the truck's front-to-back direction, meaning the opening of the hinge mechanism's angle faces the front or rear of the truck. The compression stroke of each device is adjusted by the adjusting screw assembly 52. ​​Ideally, all angle-mounted weighing devices should have the same compression stroke value; however, inconsistencies in compression stroke values ​​do not affect normal use. When the vehicle is unloaded, the compression stroke is at its maximum, meaning the spring compression value H is at its maximum. The greater the vehicle load, the smaller the spring compression value.

[0041] When the frame load-bearing beam 40 bears load, the leaf spring compresses and undergoes linear deformation, resulting in a reduction in the spring compression value H. This means the compression stroke of the angle-mounted weighing hinge mechanism connecting the frame load-bearing beam 40 and the axle 20 decreases, and the hinge mechanism angle α changes linearly in sync. The internal angle sensor detects the change in angle α in real time and converts it into a digital signal, which is then transmitted to the control instrument. The control instrument, through a comprehensive algorithm and processing of the signals output from various angle sensors on the vehicle, transmits the final usable weight to the vehicle positioning terminal, which then uploads the information to the vehicle weighing platform. This device utilizes a synchronous proportional conversion mechanism for height and angle, which effectively improves the accuracy of vehicle weighing.

[0042] Example 2: exist Figure 5 In the illustrated embodiment, an angle-based vehicle weighing device includes a height-angle synchronous proportional conversion mechanism 3 for installation on the inner side of the axle and the load-bearing beam. The height-angle synchronous proportional conversion mechanism 3 includes an angle-based vehicle weighing hinge support mechanism 4 and an adjusting fixed support assembly 5. An angle sensor 10 is provided on the angle-based vehicle weighing hinge support mechanism 4, and the angle-based vehicle weighing hinge support mechanism 3 is provided with a compression stroke and a hinge support mechanism angle that changes linearly and synchronously with the compression stroke.

[0043] Specifically, it also includes a fixed support 1 for connecting to the axle and a connecting plate 2 for fixedly connecting to the inner side of the load-bearing beam. The height and angle synchronous proportional conversion mechanism 3 is disposed between the fixed support 1 and the connecting plate 2 and is hinged to the fixed support 1 and the connecting plate 2.

[0044] See Figure 2 In this embodiment, the fixed support 1 includes a support base plate 101 and a U-shaped support 102, and a support shaft hole 103 is provided on the U-shaped support.

[0045] The height and angle synchronous proportional conversion mechanism 3 includes an angle vehicle weighing hinge support mechanism 4 connected to a fixed support 1 and an adjustable fixed support assembly 5 that is adjustablely connected to a connecting fixed plate 2. The lower end of the adjustable fixed support assembly 5 is hinged to the angle vehicle weighing hinge support mechanism 4 via an upper connecting shaft pin 6.

[0046] The adjustable fixed support assembly 5 includes a fixed support hinge seat 51 and an adjusting screw assembly 52 threadedly connected to the fixed support hinge seat 51. The adjusting screw assembly 52 includes an adjusting screw body 521 and an adjusting locking nut 522 disposed on the adjusting screw body 521. The connecting fixed plate 2 is threadedly adjusted to the upper end of the adjusting screw body 521. The adjusting locking nut 522 includes an upper adjusting locking nut 5221 and a lower adjusting locking nut 5222 disposed on the upper and lower sides of the connecting fixed plate 2. By adjusting the locking nuts 522, the adjustable fixed support assembly 5 can be adjusted axially, thereby realizing the adjustment of the hinge angle α of the angle vehicle weighing hinge mechanism 4.

[0047] The aforementioned angle-mounted weighing hinge mechanism 4 includes a lower hinge support 8 and an upper hinge support 9 hinged together by angle connecting pins 7, as well as an angle sensor 10. In this embodiment, the angle sensor 10 is disposed on the upper hinge support 9. The angle sensor 10 can be installed inside or outside the upper hinge support 9. One or more angle sensors 10 can be provided as needed; there is no specific limitation, and the number can be set according to actual requirements. Typically, one angle sensor is sufficient.

[0048] The lower hinge support 8 is hinged to the fixed support 1 via a lower connecting pin 11. In this embodiment, the lower hinge support 8 includes a lower hinge support connecting rod 81 and a lower hinge support groove 82, and lower hinge support shaft holes 83 are provided on both side walls of the lower hinge support groove.

[0049] The upper hinge support 9 includes an upper hinged end 91, a lower hinged end 92, and an angle sensor mounting base 93 disposed between the upper hinged end 91 and the lower hinged end 92. The angle sensor is installed inside the angle sensor mounting base 93 and its signal line is output outside the angle sensor mounting base.

[0050] The height between the hinge axis of the upper hinge support 9 and the hinge axis of the adjusting fixed support assembly 5 and the hinge axis of the lower hinge support 8 and the fixed support 1 is set as the compression stroke, which is the spring compression value H. The angle α between the upper hinge support equipped with an angle sensor 10 or the lower hinge support equipped with an angle sensor and the horizontal plane is set as the hinge mechanism angle.

[0051] In this embodiment, the upper hinge support 9 and the lower hinge support 8 are of unequal length, with the lower hinge support 8 being longer than the upper hinge support 9. Therefore, the line connecting the upper hinge support 9, the lower hinge support 8, the upper connecting pin center, and the lower connecting pin center forms an isosceles triangle structure. The line connecting the upper and lower connecting pin centers is not aligned with the axis of the adjusting screw body. The height between the upper and lower connecting pin centers is set as the compression stroke, i.e., the range of linear deformation (spring compression value H) produced by the compression of the vehicle's leaf spring.

[0052] The angle α of the hinge mechanism is generally set between 15 and 75 degrees. The included angle between the upper and lower hinge supports is an obtuse angle and is greater than the hinge mechanism angle α.

[0053] When the vehicle is unloaded, the hinge mechanism is at its maximum design angle, such as 60 degrees. At this time, the spring compression value H is 0 compression.

[0054] When the vehicle is loaded, the spring compression value H changes, and the spring compression value H decreases. At this time, the compression stroke of the angle vehicle weighing hinge mechanism of the angle vehicle weighing device connected between the load-bearing beam and the axle of the truck decreases, and the hinge mechanism angle α changes linearly in sync. The angle α is compressed and reduced, realizing the synchronous proportional change of height and angle, which can accurately detect changes in the vehicle load.

[0055] The vehicle-mounted weighing device is connected to the control instrument. When the vehicle load changes, the internal angle sensor detects the change in angle α in real time and converts it into a digital signal, which is then transmitted to the control instrument. The control instrument uses a comprehensive algorithm to process the signals output by the various angle sensors of the vehicle and transmits the final usable weight to the vehicle positioning terminal. The vehicle positioning terminal then uploads the information to the vehicle-mounted weighing platform, enabling real-time overload monitoring.

[0056] Example 3: exist Figure 6 , Figure 7 In the illustrated embodiment, an angle-based vehicle weighing device includes a height-angle synchronous proportional conversion mechanism 3 for installation on the inner side of the axle and the load-bearing beam. The height-angle synchronous proportional conversion mechanism 3 includes an angle-based vehicle weighing hinge support mechanism 4 and an adjusting fixed support assembly 5. An angle sensor 10 is provided on the angle-based vehicle weighing hinge support mechanism 4, and the angle-based vehicle weighing hinge support mechanism 3 is provided with a compression stroke and a hinge support mechanism angle that changes linearly and synchronously with the compression stroke.

[0057] Specifically, it also includes a fixed support 1 for connecting to the axle and a connecting plate 2 for fixedly connecting to the inner side of the load-bearing beam. The height and angle synchronous proportional conversion mechanism 3 is disposed between the fixed support 1 and the connecting plate 2 and is hinged to the fixed support 1 and the connecting plate 2.

[0058] Its technical solution is basically the same as that of Embodiment 1 or Embodiment 2, except that: In this embodiment, the angle sensor 10 is disposed on the lower hinge support 8. The angle sensor 10 can be installed inside or outside the lower hinge support 8. One or more angle sensors 10 can be provided as needed, and there is no specific limitation. The number can be set according to actual needs. In general, one angle sensor is sufficient to meet the requirements.

[0059] The lower hinge support 8 is hinged to the fixed support 1 via a lower connecting pin 11. The lower hinge support 8 includes an upper hinge end 84, a lower hinge end 85, and a lower hinge angle sensor mounting base 86 disposed between the upper hinge end 84 and the lower hinge end 85. The angle sensor is installed inside the lower hinge angle sensor mounting base 86, and its signal line is output outside the angle sensor mounting base.

[0060] The upper end of the upper hinge support 9 is hinged to the fixed support hinge seat 51 via an upper connecting shaft pin 6, and the lower end of the upper hinge support 9 is hinged to the lower hinge support 8 via an angle connecting shaft pin 7. In this embodiment, the upper hinge support 9 includes an upper hinge support connecting rod 94 and an upper hinge support groove 95, and upper hinge support shaft holes 96 are provided on both side walls of the upper hinge support groove.

[0061] In this embodiment, the upper hinge support 9 and the lower hinge support 8 are set to be of equal or unequal length.

[0062] In this embodiment, when the vehicle is unloaded, the hinge mechanism angle is at the maximum design angle, such as 45 degrees. At this time, the spring compression value H is 0 compression.

[0063] When the vehicle is loaded, the spring compression value H changes, and the spring compression value H decreases. At this time, the compression stroke of the angle vehicle weighing hinge mechanism of the angle vehicle weighing device connected between the load-bearing beam and the axle of the truck decreases, and the hinge mechanism angle α changes linearly in sync. The angle α is compressed and reduced, realizing the synchronous proportional change of height and angle, which can accurately detect changes in the vehicle load.

[0064] The vehicle-mounted weighing device is connected to the control instrument. When the vehicle load changes, the internal angle sensor detects the change in angle α in real time and converts it into a digital signal, which is then transmitted to the control instrument. The control instrument uses a comprehensive algorithm to process the signals output by the various angle sensors of the vehicle and transmits the final usable weight to the vehicle positioning terminal. The vehicle positioning terminal then uploads the information to the vehicle-mounted weighing platform, enabling real-time overload monitoring.

[0065] The vehicle-mounted weighing device described in the above embodiments adopts a synchronous proportional conversion mechanism between height and angle. Through the design of linear change of spring compression value and proportional change of angle, the accuracy of vehicle-mounted weighing is greatly improved.

Claims

1. An angle-mounted vehicle-mounted weighing device, characterized in that: The system includes a height and angle synchronous proportional conversion mechanism (3) for installation on the inner side of the axle and the load-bearing beam. The height and angle synchronous proportional conversion mechanism (3) includes an angle vehicle-mounted weighing hinge support mechanism (4) and an adjustable fixed support assembly (5). An angle sensor (10) is provided on the angle vehicle-mounted weighing hinge support mechanism (4), and the angle vehicle-mounted weighing hinge support mechanism (4) is provided with a compression stroke and a hinge support mechanism angle that changes linearly and synchronously with the compression stroke.

2. The angle-mounted vehicle weighing device according to claim 1, characterized in that: The angle vehicle-mounted weighing hinge mechanism (4) includes a lower hinge support (8) and an upper hinge support (9) that are hinged to each other by an angle connecting pin (7), and the angle sensor (10) is disposed on the lower hinge support (8) or the upper hinge support (9).

3. The angle-mounted vehicle weighing device according to claim 2, characterized in that: The upper end of the upper hinge support (9) is hinged to the adjusting fixed support assembly (5), and the lower hinge support (8) is hinged to a fixed support (1).

4. The angle-mounted vehicle weighing device according to claim 2, characterized in that: The upper hinge support (9) is hinged to the adjusting and fixed support assembly (5) via an upper connecting pin (6), and the lower hinge support (8) is hinged to the fixed support (1) via a lower connecting pin (11).

5. The angle-mounted vehicle weighing device according to claim 3, characterized in that: The height between the upper hinge support (9) and the hinge axis of the adjusting fixed support assembly and between the lower hinge support (8) and the hinge axis of the fixed support is set as the compression stroke. The angle between the upper hinge support (9) equipped with an angle sensor (10) or the lower hinge support (8) equipped with an angle sensor (10) and the horizontal plane is set as the hinge mechanism angle.

6. The angle-mounted vehicle weighing device according to claim 2, characterized in that: An angle sensor mounting base is provided on the upper hinge support (9) or the lower hinge support (8), and the angle sensor (10) is installed inside the angle sensor mounting base.

7. The angle-mounted vehicle weighing device according to claim 2, characterized in that: The lower hinge support (8) and the upper hinge support (9) are set to the same length or to different lengths.

8. The angle-mounted vehicle weighing device according to any one of claims 1 to 7, characterized in that: The adjustable fixed support assembly (5) includes a fixed support hinge seat (51) and an adjusting screw assembly (52) connected to the fixed support hinge seat (51).

9. The angle-mounted vehicle weighing device according to claim 8, characterized in that: The adjusting screw assembly (52) includes an adjusting screw body (521) and an adjusting locking nut (522) disposed on the adjusting screw body (521).

10. The angle-mounted vehicle weighing device according to claim 9, characterized in that: The adjusting screw body (521) is provided with a connecting fixing plate (2) in an adjustable manner.

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